紧凑重频Tesla变压器型调制器的实验研究
Experimental studies on repetitive pulsed power modulator with compact Tesla transformer
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摘要: 采用所设计的紧凑Tesla变压器型重频调制器，对Tesla变压器子系统和调制器系统在单脉冲和重频两种模式下分别进行了实验研究，并对实验结果进行了分析讨论，结果表明:单脉冲和重频(50 Hz)两种模式下，Tesla变压器给形成线充电的峰值电压分别可达380 kV和300 kV，且变压器充电稳定性能高；通过调整气体火花隙主开关的电极间距和工作气压，在调制器单脉冲运行中得到最高输出电压330 kV,脉宽7 ns,上升沿2 ns；在重复频率不超过40 Hz、调制器重频运行小于或等于300个脉冲数时，不需施加冷却系统和吹气系统，大大减小装置的体积和质量；在300个脉冲数以内，随着脉冲数目增加，调制器输出电压的平均值下降，输出电压的不稳定度变小，输出电压下降度增加，并在脉冲数达到50个以上时趋于稳定；随着重复频率增高，调制器输出电压的不稳定度增加，重复频率上升到40 Hz以上时，输出电压的平均值下降较大；调制器重复频率40 Hz下稳定运行输出300个脉冲，输出电压310 kV,电压不稳定度为6%，电压下降度为6%。Abstract: A designed pulsed power modulator are experimentally studied in single pulse mode and in repetitive mode, respectively. The measured maximum secondary charging voltages of the Tesla transformer are 370 kV and 300 kV in single pulse mode and repetitive mode (50 Hz), respectively. The charging operation of Tesla transformer can be steadily carried out and the modulator’s highest output voltage through a 100 Ω resistive load in single pulse mode is 330 kV with 7 ns duration and 2 ns rise time. The cooling system and gas blowing system are unnecessary and unadopted experimentally in repetitive mode when the number of pulses in a batch is less than or equal to 300. As a result, the volume and weight of the modulator system is reduced. In the range of 300 pulses in a batch, with the increase o
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Key words:
- high power microwave /
- pulsed power modulator /
- tesla transformer /
- repetition rate
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